Plz 8th grade math (05.02)
a line passes through (3, 7) and (6, 9). which equation best represents the line?
y = x + 5
y = x + 5
y = 3x + 2
y = x + 2

The equation that represents that line is 
y=2/3x+5. 

First, you have to find the slope (the change of y over the change of x which here is 2/3. Then, you put one of the points in and solve. I used (3,7) When you input them into the equation, you get 7=2/3 (3)+_ Which gives you 7=2+_ . 
5+2 is seven, so the blank is 5. So, when you do that, you get Y=2/3x+5.
If you need more of an explanation, comment. The answer is the second one 

Hopes this helps :)